Device for guiding, clearing, and tensioning yarn



I. O. IVIcKEAN. DEVICE FOR GUIDING, CLEARING/AND TENSIONING YARN.

APPLICATION FILED JAN. 6. I922.

Patented Nov M, 1922.

Z7 venfara Patented Nov. 14, 11922.

@NWE Po are JOHN O. MQKEAN', OF 2VIES'liliIEIJ), MASSACHUSETTSpASSIGNORTO FOSTER MACHINE company, or WESTIFIELD, MASSACHUSETTS, A CORPORATIONor MASSACHUSETTS.

DEVICE FOR GUIDING, CLEARING, AND TENSIONING YARN.

Application filed January 6, 1922. Serial No. 527,338.

of a device for guiding, clearing and tensioning yarn whereby thegravityoperated disc of the tension device can be readily removed when .sodesired and in which the use of the usual pin carried by the bracket onwhlch the disc is mounted, is obviated.

- My invention comprises a bracket provided with a yarn supportingplatform on which the gravity operated weighted disc is loosely mountedfor lateral and vertlcal movement, means being provided exterior to thedisc for limiting its lateral and upward movements.

A practical embodiment of my invention is represented in theaccompanying drawin s, in which Fig. 1. represents a top plan YIQW ofthe device.

Fig. 2 represents a side elevatlon.

Fig.3 represents a bottom plan.

Fig. 4 represents a front view.

Fig. 5 represents a back View, the guard being shown in full lines inits lowered .pos tion andin dotted lines in its raised position.

Fig. 6 represents a section taken in the plane of the line VI-VI of Fig.1.

The bracket herein shown is preferably a casting comprising a resilientyoke, the lower branch of which is denoted by 1 and the upper branch by2. These two branches are provided with lateral extensions 3 and 4,forming between them a slit 5 for the passage of the yarn. Thelaterahextensign 3 is provided with an uprising pin 6 extending acrossthe slit 5 to serve as a guide for the yarn as it passes from thedevice.

The lower branch 1 of the bracket is provided with a horizontallydisposed platform 7, forming a support for the yarn as it passes throughthe tension devlce, which platform is connected tothelower lateralextension 3 of the branch 1 by the web 8 and also to the 55 lower branch1 by the web 9 over which web the yarn passes to the tension device. A.V-shaped'yarn guide 10 projects from the yarn supporting platform 7.Thisyarn supporting platform is provided with a hole 11 "therethroughfor the reception of the depending lug of the tension disc, to beimmediately described, said hole having downwardly flaring walls,\whereby the waste and seed from the yarn will readily fall through thehole without any tendenc to stick to the walls as would bethe case i thewalls were parallel. I

The freely rotatable gravity operated weighted disc 12 is looselymounted on the yarn supporting platform 7 for limited latoral andvertical movements. The means for limiting the upward movement of thedisc being movable out of the way when so desired, for permitting theready removal of the disc from the device.

This gravity 0 erated weighted disc 12iis shown as provi ed with'alined.depending and uprising lugs 13 and 14 of considerable length, thedepending lug 13 projecting through the hole 11 in the yarn supportingplatform 7, said hole being suflicientl'y larger than the lug to permitthe limited lateral movement of the disc on the platform. This hole ispreferably elongated to permit a greater lateral movement of the disc atright angles to the path of the yarn. The uprising lug 14 of the discserves as a mounting for additional weights when required, as is usual.I

An overhanging guard 15 serves to coact with the top of the uprising lug14 of the disc to retain the disc in its cooperative relationship withthe yarn supporting platform and also to limit the upward movement ofthe disc away from said platform. This'guard 15 is movable out of theway when so desired, to permit the removal of the disc; in the presentinstance by hinging the guard on the pivot 16 between two ears 17, 18,uprising from the upper branch 2 of the bracket, a pin 19 being providedto act as a stop for limiting the downward movement of the guard, and aspring 20 being provided'for yieldingly holding the guard in its raisedor lowered positions. The lower branch 1 of the yoke is provided with alug 21 having a hole 22 therethrough for the reception of a crossbar,(not shown) which hole is preferably slightly inclined for tilting thedevice in a direction tending to slide the disc 12 to the outward limitof its movement on the yarn supporting platform. A

set screw23 serves to secure the bracket to .the crossbar (not shown) inthe desired adarrangement of the several parts without departing fromthe spirit and scope of -my' invention; hence I do not wish to limitmyself. to the particular embodiment herein shown and described, butvWhat I claim is 1. In atension device, a. yarn supporting platform,'agravity operated weighteddisc loosely mounted thereon for lateral andvertical movements and means exterior to the disc for limiting therlateral and upward movements ,of the disc.

2. In a tension device, a yarn supporting platform, a gravity operatedweighted disc loosely mounted thereon for lateral and verticalmovements, and means exterior to the disc for limiting the lateral andupward movements of the disc, the means for limiting the upward movementbeing movable to permit the removal of the "disc;

3. In a tension device, a yarn supporting platform, a gravity operatedweighted disc loosely mounted thereon for lateral and ver ticalmovements, means exterior to the disc for limiting its lateral movement,and means for limiting its upward movement.

4. In a tension device, a yarn supporting platform, a gravity operatedweighted disc loosely mounted thereon for lateral and ver ticalmovements, means exterior to the disc .forlimiting its lateral movement,and means for limitingits upward movement, said last named means beingmovable topermit the removal of the disc.

5. In a tension device, a yarn supporting platform, a gravity operatedweighted disc loosely mounted thereon for lateral 'and verticalmovements, said yarn supporting'platform acting as the means forlimiting the lateral movement of the disc, and, a guard for limiting thevertical movement of the disc.

6. In a tension device, a yarn supporting platform, a gravity operatedweighted disc mounted on the loosely mounted thereon for lateral andvertical movements, said yarn supporting platform acting as the meansfor'limiting the lateral movement of the disc, and a guard for limitingthe verticalmovement of the disc, said uardbeing movable to 'permit theremoval 0 the disc.-

7. In a tension device, a yarn supporting platform having -a ,holetherethrough, a gravity operated weighted disc loosely arn supportingplatform and having a epending lug projectin through, the hole forlimiting the latera movement of the disc, and a guard for limiting thevertical movement of the disc.

8. In a tension device, a yarn supporting platform having a holetherethrough, a gravity operated weighted disc loosely mounted on theyarn supporting platform and'having a depending lug projecting throughthe hole for limiting the lateral movement of the disc,

and a guard for limiting the vertical'movement of the disc, said guardbeing movable to permit the removal of the disc.

- 9. 'Ina tension device, a bracket including a yarn supporting platformhaving a hole therethrough, a gravity operated disc. loosely mounted onthe am supporting platform and having a epending lug project'm throughthe hole for limiting the later movement of the. disc, and also havingan uprising lug, and an overhanging ard for limiting the upward movement0 the disc by en agement with said uprising lug. 10. In a tensiondevice, a bracket including a yarn supporting platform havin a holetherethrough, avgravity operated isc loosely mounted on the yarnsupporting platform and having a depending lug projectin through thehole '-for limiting the latera movement of the disc, and also having anuprising lug, and an overhanging guard for limiting the upward movementof the disc through-the hole for limiting the latera movement ofthedisc,jand means for limitin the vertical movement of the disc.

11 testimony that I claim the foregoing as my invention, I have signedmy name this 4th ay of January, 1922.

' JOHN o. MQKEAN,

having a hole therethrough, the

ing lug projectin

